DMEX D1S HID Headlight Bulbs 4300K Warm White 35W Pack of 2 — 3800 lm, Quartz Anti-UV

DMEX D1S 4300K Xenon HID headlight bulbs are direct replacements for factory D1S HID lamps, delivering bright, warm-white illumination with 35W power and improved road coverage.

These DMEX D1S bulbs are engineered as like-for-like replacements for vehicles equipped with factory D1S HID systems (not compatible with halogen housings). Built with quartz anti-UV glass and high-grade xenon gas, they deliver up to 3800 lumens of warm-white (4300K) light while maintaining OEM-style color and beam pattern. Each pack includes two bulbs and comes with a 2-year warranty for peace of mind.

How do these bulbs differ from standard halogen or other HID options?

DMEX D1S bulbs use xenon gas and APL ignition pills to produce a brighter and more efficient beam than halogen filaments, while matching OEM HID system requirements. They are specifically sized and rated for D1S sockets, so they maintain the correct electrical and optical characteristics for factory HID projectors.

• 35W power rating tuned for factory HID ballasts
• Up to 3800 lumens output for stronger visibility
• 4300K warm-white color for natural road contrast
• Quartz anti-UV glass to resist yellowing and heat stress

Will these bulbs fit my car and its headlight system?

These bulbs are replacement parts for vehicles that came with D1S HID from the factory; they will not work correctly in halogen headlamp assemblies or in systems using different D-series bases. Confirm your existing bulb code (D1S) before purchasing to ensure compatibility.

• Intended for vehicles requiring D1S-type HID bulbs only
• Not suitable for halogen reflectors or housings
• Fits common OEM references: 66144, 66140, 85140, 85415
• Requires a compatible 35W HID ballast to operate properly

What performance and durability features do these DMEX bulbs offer?

DMEX D1S bulbs combine high-quality materials and optimized gas fill to increase light output and longevity. The quartz glass resists UV degradation and thermal stress, while tungsten electrodes and APL ignition technology support reliable ignition and stable arc performance.

• High-quality xenon gas plus APL ignition pills for stable arc
• Quartz anti-UV glass resists clouding and heat damage
• Tungsten metal electrodes for consistent lifespan and output
• Designed to increase effective illumination distance by about 50 meters

How will upgrading to these bulbs change on-road visibility?

Upgrading to DMEX D1S xenon bulbs typically produces a brighter, whiter beam that improves contrast and scene definition at night compared with standard halogen setups. Because they are calibrated to D1S specifications, they retain proper beam cutoff and pattern when used in compatible projectors.

• Up to 3800 lumens for clearer night visibility
• 4300K tone balances brightness and natural color rendition
• Extended irradiation distance can aid obstacle recognition
• Maintains factory beam pattern in compatible housings

Who is this for: The DMEX D1S 4300K 35W pack of two is intended for drivers whose vehicles originally came with D1S HID lighting and who want a reliable, warm-white replacement that preserves OEM beam characteristics while boosting brightness. It is not for cars with halogen bulbs or mismatched bases; buyers should verify their bulb type and ensure their vehicle uses a D1S 35W ballast before ordering.